The Polyjoule hydrogen-powered prototype

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A five year Shell Eco Marathon fuel efficiency record has been smashed by a team of French students. Team Polyjoule broke the record on the first day of the event by recording an astounding result of 4,414 kilometers on the equivalent of one liter of fuel (that's 10,382 mpg). The team then went on to break its own record by a further 482 kilometers. But the students still expect even more from their hydrogen fueled vehicle and are already looking toward next year's Marathon.